Obelia: Scaling DAG-Based Blockchains to Hundreds of Validators
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916469927837696 |
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| author | Danezis, George Kokoris-Kogias, Lefteris Sonnino, Alberto Tian, Mingwei |
| author_facet | Danezis, George Kokoris-Kogias, Lefteris Sonnino, Alberto Tian, Mingwei |
| contents | Obelia improves upon structured DAG-based consensus protocols used in proof-of-stake systems, allowing them to effectively scale to accommodate hundreds of validators. Obelia implements a two-tier validator system. A core group of high-stake validators that propose blocks as in current protocols and a larger group of lower-stake auxiliary validators that occasionally author blocks. Obelia incentivizes auxiliary validators to assist recovering core validators and integrates seamlessly with existing protocols. We show that Obelia does not introduce visible overhead compared to the original protocol, even when scaling to hundreds of validators, or when a large number of auxiliary validators are unreliable. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_08701 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Obelia: Scaling DAG-Based Blockchains to Hundreds of Validators Danezis, George Kokoris-Kogias, Lefteris Sonnino, Alberto Tian, Mingwei Cryptography and Security Distributed, Parallel, and Cluster Computing Obelia improves upon structured DAG-based consensus protocols used in proof-of-stake systems, allowing them to effectively scale to accommodate hundreds of validators. Obelia implements a two-tier validator system. A core group of high-stake validators that propose blocks as in current protocols and a larger group of lower-stake auxiliary validators that occasionally author blocks. Obelia incentivizes auxiliary validators to assist recovering core validators and integrates seamlessly with existing protocols. We show that Obelia does not introduce visible overhead compared to the original protocol, even when scaling to hundreds of validators, or when a large number of auxiliary validators are unreliable. |
| title | Obelia: Scaling DAG-Based Blockchains to Hundreds of Validators |
| topic | Cryptography and Security Distributed, Parallel, and Cluster Computing |
| url | https://arxiv.org/abs/2410.08701 |